Innholdsfortegnelse for May/June 2019 i Click Science and Discovery Magazine for Preschoolers and Young Children

Bad germs can’t make you sick if they can’t get inside your body. If they do get in—through your mouth or nose, for example—your body has ways to stop them before they make you sick. Your skin surrounds your body like a strong wall to keep the bad germs out. If you get a cut or scratch, your blood has sticky bits that clump together to stop the bleeding and close the opening. Then germs can’t get in. Your blood looks red because it contains red blood cells. But it also has white blood cells that kill germs. Your lips can seal your mouth up tight. Your eyelids and eyelashes block some germs. Tears can wash away others. Tiny hairs and sticky earwax trap germs and keep them from going…

Even though your body is always on guard, sometimes bad germs do make you sick. It’s no fun feeling tired or achy or sneezy. But those yucky feelings tell you that your body is busy fighting germs. The more germs there are, the more slimy mucus your body makes to try to trap them. Some of the extra mucus drips from your runny nose. You sneeze to send germs (or anything else that tickles the inside of your nose) flying out of your nose and mouth. Sometimes you throw up to push germs and spoiled food out of your stomach. When you have a fever, your body temperature is higher than normal. The high heat kills many germs. It also tells your white blood cells to work harder. White blood…

Why are people always telling you to wash your hands and cover your mouth when you sneeze? To stop germs from spreading! When you sneeze, germs come flying out of your nose and mouth. And they can travel far. How far? Go outside and pour a little pile of glitter onto your hand. Hold your hand flat, up by your face. Pretend to sneeze. Achoo! How far did the glitter go? A real sneeze can send germs 20 feet away. That’s as far as 24 Click magazines lying end to end! Scrubbing your hands with soap and water loosens germs and rinses them away. You can’t see germs. How do you know if you washed them all away? Squeeze a small blob of washable paint onto your dry hand. Rub…

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Sore throats happen for lots of reasons. Many go away on their own, but some need a doctor’s help to get better. How can you tell which one you have? If your throat is so sore that it hurts to swallow, or even to talk, and you have a fever, you might have strep throat. Especially if your sore throat lasts for a few days. Strep throat is caused by bacteria, a kind of germ. If you have strep, you need to visit a doctor. Not all sore throats are strep, so your doctor will check to see if you have it. The doctor will feel along your throat, under your chin. If it’s tender there, it’s because your lymph nodes are swollen. Lymph nodes help fight germs in your…